Lasting-machine



lW. A. ELLIASSON. LASTING MACHINE. APPLICATION FILED 1MM. 1918. nsnswfuJAN. 7. |920. 1,349, 1 92, Patented Aug. 10, 1920.

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UNITED Vs'rarlzs PATENT OFFICE.

WILLIAM A. ELIIIASSON, 0F BRIDGEPORT, CONNECTICUT, ASSIGNOR TO HAMELSHOE MACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS.

Specification of Letters Patent.

LASTING-MACHINE.

Patented A110; 10, 1920.

Application filed January 7, 1918, Serial No. 210,618. Renewed January7, 1920. Serial No. 350,063.

To all 107mm z? may concern Be it known that I, l/VILLIAM A. ELLrAssoN,a citizen of the United States, residing at Bridgeport, in the county ofFairfield and State of Connecticut, have invented certain new and usefulImprovements in Lasting-Machines, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to shoe machines and more specifically toimprovements in that type of lasting machine disclosed in the patent toLadd and McFeely, 584,744, June 15, 1897, the present invention beingconcerncd particularly with the means for swinging and turning thepincer-bar.

In machines of the type specified as heretofore constructed, the desiredmovements of the pincer-bar have been secured only by the employment ofcomplicated mechanism which is expensive in construction and upkeep, andat the Sametime embodies'certain undesirable structural features.

rIhe present invention therefore comprises mechanism for securing theabove movements of the pincer-bar which is relatively simple and cheapto construct, easy to repair and which is positive and reliable inaction.

Other objects and advantages of the invention will be set forth more atlength in the following detailed description and particularly pointedout in the claims, reference being had to the annexed drawings for afull disclosure thereof and in which Figure 1 is a perspective view ofso much of a lasting machine of the above type as is necessary toillustrate the application of the invention thereto, and

Fig. 2 is a sectional detail of one feature of the invention; and Fig. 8is a detail of va slight modification.

1 and 2 indicate the forward ends of the prongs carried by the usualrotatable supporting shaft employed in this type of machine, said prongsbeing provided at their forward ends, as indicated at Sand 4, withsuitable bearings for a slidable carrier 5, the carrier in the presentembodiment being shown as comprising sleeved portions 6 and j 7, itbeing understood, however, that variousV modifications in thearrangement of this structure may be made without materiallyaffectingfthe scope of the invention. Slidably meunted within thesleeved portions of the carrier 5 is a slide 8, said slide havingprojecting from its central portion in a forward direction a lug 9,which may be formed integral with the slide or attached thereto in anydesired manner, said lug being provided near its central portion with anopening at 10.

Projecting forwardly from the extremities of the sleeve-members 6 and 7are a pair of abutments 11 and 12, said abutments being provided withopenings therein, which openings are alined with the opening 10 in thelug 9. Passing through the several openings in the abutments and the lugis a rod 13, said rod being held within the abutments by suitable nutsupon its outer extremities shown at 14, but passing loosely and freelythrough the opening 10. Encircling said rod and between the lug and therespective abutments are springs 15, 16. said, springs being hereinshown as coiled compression springs arranged to be normally under aslight' degree of compression, and having their opposite ends bearingagainst the lug and the adjacent abutment. If desired. (see Fig. 8)means may be provided for adjusting the initial tension of the springs,lsuch means comprising, as herein shown. nuts 16 having threadedengagement with the rods 15 and 16 and interposed between the springsand the respective abutments. It will be seen from the aboveconstruction that the springs tend to maintain the slide in a positioncentral of the sleeved carrier, that is to say, if the-slide be movedwithin the sleeves the tendency of the springs is to move the sleevedcarrier in the same direction until their central portions are again inalinement, l

At 19 is indicated a rockable shaft. this shaft being supported in themachine frame in the same manner as the corresponding shaft of thepatent above referred to, and having fixed upon its forward extremity acurved sector 20. Guided for sliding movement upon the curved surface'of said sector is a member 21. the guides 22 serving to maintain saidmember 21 in proper relationship to the sector 20, but permitting freesliding movement of Vthe member 21 with respect thereto. At 24 is a lugprojecting outwardly from the central portion of the member 21 andhaving an opening 25 formed therein. 26 is a link havin@f projectingfrom one end thereof pin 2 said sptituted therefor.

pin engaging with the opening-25A in the lug 24. 28 is a second linkhaving a balland-socket connection at 29 with Vlink 26,v Vand having itsopposite end connectedV by mounteda slide-block 32 having a-journalvopening 33 therein. By means of this'construction the lever 30 may beYadjustably supported for swingingmovement upon Va suitable part of theframe structure, not herein disclosed, the above arrangement being oldand fully described in thepatent above referred to. rlhe lower end ofthe lever 30. is pivotally connected at 34 with theinner extremity ofthe link 26, movement of the link in a lengthwise direction, thusserving to rock the lever 30 about its pivotal support.

At 35 is indicated a vertically movable rod Vor shaft, which may beprovided with any suitable means for moving the same such, foreXample,las is disclosed in Figs. 6 and 7 0f the patent to Gooding and`Ladd 423,922, r'lVIa-rch 25, 1890, although it is to be understood anyvequivalent mechanism under control of the operator may be sub- The upperportion of this rod 35 is offset and provided with a squared portion 36adapted for sliding movement in a suitable bearing 37, whereby the shaftis prevented from rotating on its Y own axis. Link 26 is provided at 38with a i slot into which projects a pin 39 carried upon the rod 35. Bythe above construction it will be evident that vertical movement of therod 35 will cause a swinging of the linkY ber21fto slide upon the sector20, and to assume positions either above or below the axis of the shaft19, upon which said sector is mounted. n

40 indicates the usual pincer-bar employed in machines of this type,said bar being provided at its upper endY with a ball 41, ser-ving asone element of a ball-andlsocket joint, and whereby the baris sup-YJournaled within Vthe opening 44 and having screw-threaded engagementwith the collar 45 isa pin 47 constituting a crankarm, said crank-armbeing provided at 48 with a flat bearing surface. 1n assembling themachine the arm 47 is screwed into the collar 45, but is not set uptightly, permitting free turningof the same to-a slight amount in eitherdirection. 49 is a connecting rod having one extremity thereofuniversally connected with the lever 30, as indicated at the point 50,and having its opposite extremity flattened at 51 for engagement withthe bearing surface 48. Crankarm 47 and connecting rod 49k are providedwith alined openings for the reception ofpa crankpin 52, hereinshown asin the form of a'bolt, this form of pin, however, not being essential tothe invention.

rl`he operation ofthe above mechanism will now be obvious. Thepincer-bar 40 being suitably supported and in central vertical position,the slide-member 21 being located centrally of the link 20, upon rockingmovement of link through shaft 19 no movement will be imparted to saidpincerbar. 1f it rbe desired, however, during the operation of lasting'to cause a side swinging of the pincer-bar upon its bearings V41 the rod35 is moved either upwardly or downwardly from the central positionherein shown, thereby causing the guide-memher 21 to move away from theaxis of shaft 19 and along the surface of sector 29 in one or the otherdirection. A rocking movement of the sector through shaft 19 willthereupon cause a longitudinal movement of link 26 and'therewith of thelink 28, the latter link through its connection with the slide 8producing increased compression in one-orth'e otherv of the springs 15,16, according to the direction of movement of the link 26. Suchadded'compression of one of said springs will, through the reactionthereof against the adjacent abutment, cause a sliding movement of thecarrier 5 in a direction corresponding to that of the slide 8, thusserving' to swing the bar 40 about its pivotal point 41 and therebyresiliently movingthe pincers to one side-or the other of their centralposition. iMovement of the rod 35 in a directionopposite to that aboveindicated will evidently produce a swinging of the pincer-bar in theopposite direction.

1n Vthe above operation it will be A'further noted that upon movement ofthe ylink 26 either to the left or-right, thelower end of the lever 30through its connection at 34 to said link will be correspondingly moved,thus swinging theuppe'r end of said lever and through connecting rod 49and crank 47 producing an oscillation of the pincer-bar 40 about'its ownaxis, thus causing a turning of the pin'cers for producing the .withrespect to the dit, it is clear that a swinging of the lever 30 wili bepermitted without causing any binding of the parts connecting 'thesameto bar 40.

While the movements above indicated are old and weil known in this typeof machine, such movements have heretofore been carried out by mostcomplicated mechanisms, which, in many cases contain featuresundesirable from a mechanical standpoint, rendering the machinesdiflicult to maintain in working order and expensive to build, whereasin the invention herein disclosed, the necessary movements of thepincer-bar are produced by very simple mechanism having few parts, andsuch as are not liable to become disarranged in operation by reason ofwear or rough usage.

While the above is a preferred embodiment of the invention, it isevident that various changes and modifications may be made thereinwithout departing from the essential features thereof, and it is to beunderstood that all such changes and modiviications as fall within thescope of the appended claims are to be considered as a part thereof.

Having thus now described the invention what 1 claim and desire tosecure by Letters l?atent of the United States is 1. In a machine of theclass described, in combination, a pincers-bar, a carrier therefor, aslide mounted for reciprocation upon the carrier, means forreciprocating said slide and a pair of compression springs therefordirectly interposed between said slide and the carrier for transmittingmovement of the slide to the carrier.

2. 1n a lasting machine, in combination, a pincers-bar, a carriertherefor, said carrier comprising a sleeved portion, a slidereciprocable in said sleeved portion, means for reciprocating` theslide, a pair of abutments iixed upon the opposite extremities of saidcarrier, a lug fixed centrally of said slide, and a pair of compressionsprings interposed between the respective abutments and said lug.

3. In a lasting machine, in combination, a pincers-bar, a carriertherefor comprising a slide-way, a slide reciprocable in said slideway,means for reciprocating said slide, aV

engaging the openings in the respective abutments, and pair ot springsencircling said rod and interposed between said lug and the respectiveabutments, and means for adjusting the tensin of said springs.

1l. 1n a machine of the class described having a pincers-bar and acarrier tl `irefor, in combination, a reciprocable slide, means fortransmitting movement of said slide to the carrier, and means forreciprocating said slide comprising a rockable sector, a guidedmemberslidable thereon, connecting means between said slide and said member, amanually actuated rod and an element having direct connections with saidrod and the guided-member respectively whereby movement of the rodserves to adjustably position said member upon the sector.

5. In a machine of the class described a laterally movable pincers-barand means for moving said bar, said means comprising a rockable sector,a guided-member slidable upon said sector, connections between saidmember and the pincers-bar, a slidable rod, a pivoted link having oneend thereof connected to said member, and a direct connection betweensaid rod and said link, whereby movement of the rod serves to adjustablyposition said member upon the sector.

6. In a machine for lasting shoes having a laterally movablepincers-bar, in combination, a rockable shaft, a sector centrallymounted upon one extremity thereof, a guided-member slidable upon saidsector, and having connection with said bar, a pivot-ally supported linkhaving one end thereof connected to said member and provided with alongitudinal slot, a vertically slidable rod, and a pin carried by saidrod and engaging said slot, whereby movement of the rod serves toadjustably position said member upon the sector and to either side ofthe rockable shaft.

7. In a machine of the class described, in combination, a pincers-bar,means for rotatably supporting the same, and mea-ns for oscillating saidbar, said means comprising a rockable lever arm, a connecting-rod, anaxially rotatable crank arm carried by said bar, and a crank pinconnecting said arm with said rod.

8. 1n a machine for lasting shoeshaving a rotatably supportedpincers-bar, in combination, means for oscillating said bar about itsaxis comprising a crank arm projecting from said bar and having asubstantially flat bearing surface, a connecting rod having a facearranged for engagement with said surface, a crank pin for pivotallyconnecting said arm and rod and means for reciprocating the rod.

9. In a lasting machine, in combination, a universally mountedpincer-bar, and means for oscillating said bar about its axis, saidmeans comprising a pin projecting from said bar and rotatably securedthereto said in constituting a crank arm and a reei rocable connectingrod having pivotal connection with said arm.

l0. In a machine of the class described, in combination, a rotatablysupported pincerbar and means for oscillating said bar, said meanscomprising a pin projecting from said bar and having a rotatableengagement therewith,Y said pin constituting a crank arm vand beingprovided With a substantially flat bearing surface,' a Connecting rodhaving one extremity engaging said snrace, a crank pin pivotallyconnecting said rod with said arm, anda roekable lever member having 15universal connection With the other extremity of said rod forreciprocating the same and thereby oscillating the bar.

In testimony whereof I-have signed my name to this specification.

WiLLIAM A. ELLiAssoN.

